Rick’s show about his Tour du Mont Blanc hiking was only a couple of years ago. To do the full route takes several more days, but Rick hiked for only three (maybe the most scenic sections) and said it was the hardest hiking he’d ever done.
Another episode many years ago showed the Camino de Santiago pilgrimage walk, ending in the northwest of Spain.
Rick’s described Hadrian’s Wall in his guidebooks and on TV, but hasn’t covered walking the length of the Wall. The trail is 84 miles long, and is more walking than hiking. The Wall was an ancient barrier created when the Roman Empire extended into what’s now England, along what is now the border with Scotland. We walked the length of it in 2015, essentially crossing England from the Atlantic to the North Sea (about the narrowest part of the country), and had a service transport out suitcases from B&B to B&B. We picked out where we were staying, so were able to decide how far to go each day, and had small backpacks during the day, to carry snacks and rain gear. There are companies that can organize all of it for you, and you just do the walking. The route is signposted, and parts of the ancient wall remain, although over the centuries, a lot of it was dismantled by locals, who used the stones to build their own structures. There are fascinating museums along the way too, which show Roman artifacts and describe life as a soldier in forts along the Wall. If the weather is too much or you’re too tired at any time, you can get a bus or taxi ride to move farther along, or to get to your lodging for that night.